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Rapid City

$128+ Cheap flights from Seattle to Rapid City (SEA - RAP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — RAP
Jul 7 — Jul 141
Tue 7/7
Tue 7/14
1 adult, Economy
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Cheap flight deals from Seattle to Rapid City

Cheapest flights from Seattle to Rapid City
Explore the most affordable flight options available from Seattle to Rapid City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 7, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:13 pm
SEA
-
RAP
1 stop18h 42m
Multiple Airlines
Thu 9/312:36 pm
RAP
-
SEA
1 stop22h 59m
Multiple Airlines
Deal found 6/3$305
This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/265:00 am
SEA
-
RAP
1 stop6h 24m
United Airlines
Wed 9/210:26 am
RAP
-
SEA
1 stop6h 26m
United Airlines
Deal found 6/2$319
This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:54 pm
SEA
-
RAP
1 stop5h 34m
United Airlines
Tue 9/87:00 am
RAP
-
SEA
2 stops9h 39m
United Airlines
Deal found 6/2$324
This United Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:00 am
SEA
-
RAP
1 stop5h 55m
United Airlines
Wed 8/265:00 am
RAP
-
SEA
1 stop6h 01m
United Airlines
Deal found 6/6$329
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:13 pm
SEA
-
RAP
1 stop17h 27m
Multiple Airlines
Fri 8/286:40 pm
RAP
-
SEA
2 stops48h 46m
Multiple Airlines
Deal found 6/5$350
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/162:34 pm
SEA
-
RAP
1 stop5h 10m
United Airlines
Wed 10/214:41 pm
RAP
-
SEA
1 stop5h 34m
United Airlines
Deal found 6/4$363
This United Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/213:54 pm
SEA
-
RAP
1 stop5h 34m
United Airlines
Tue 8/258:55 am
RAP
-
SEA
2 stops8h 19m
United Airlines
Deal found 6/6$369
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:00 am
SEA
-
RAP
1 stop6h 24m
United Airlines
Fri 8/2810:26 am
RAP
-
SEA
1 stop8h 16m
United Airlines
Deal found 6/5$379

Find flight deals from Seattle to Rapid City

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Rapid City (RAP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$305
(Kiwi.com)

One-way from

$128
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$523
Provider with most accurate pricing for Seattle/Tacoma Intl-Rapid City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Rapid City flights.
Search Deals
From Seattle/Tacoma Intl to Rapid City
Search Deals
One-way flight from Seattle/Tacoma Intl to Rapid City
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Rapid City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 7, 2026.
Use the filters below to find and compare flights from Seattle to Rapid City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 8/21

3:54 pm-10:28 pm

1 stop5h 34m

Rapid City

Tue 8/25

8:55 am-4:14 pm

2 stops8h 19m

$369

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 6/25

2:33 pm-10:25 pm

1 stop6h 52m

Rapid City

Wed 7/1

5:00 am-10:00 am

1 stop6h 00m

$400
Quickest round-trip

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Mon 8/24

5:00 am-12:24 pm

1 stop6h 24m

Rapid City

Thu 8/27

5:58 pm-11:04 pm

1 stop6h 06m

$416

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Tue 7/7

8:35 am-8:24 pm

2 stops10h 49m

Rapid City

Mon 7/13

5:53 pm-11:10 pm

1 stop6h 17m

$516

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 10/8

3:29 pm-9:28 am

2 stops16h 59m

Rapid City

Thu 10/15

5:00 am-10:01 am

1 stop6h 01m

$576

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 6/27

5:00 am-12:29 pm

1 stop6h 29m

Rapid City

Mon 6/29

7:00 am-10:00 pm

2 stops16h 00m

$578

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Mon 6/22

5:07 am-12:29 pm

1 stop6h 22m

Rapid City

Fri 6/26

5:53 pm-11:10 pm

1 stop6h 17m

$601

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 8/27

3:30 pm-12:24 pm

3 stops19h 54m

Rapid City

Mon 8/31

7:00 am-11:44 am

1 stop5h 44m

$613
Cheapest one-way

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 9/2

8:13 pm-11:46 am

1 stop14h 33m

$164

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 7/4

8:12 pm-9:00 pm

1 stop23h 48m

$171

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/4

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Compare providers for flights from Seattle to Rapid City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Rapid City in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Rapid City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Rapid City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Rapid City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Rapid City flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Rapid City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Rapid City

Have a flexible travel schedule? Discover the best time to fly to Rapid City from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Rapid City

How far ahead should I book a flight from Seattle to Rapid City?

The price you pay for your flight from Seattle to Rapid City may vary depending on when you book. For the best chance of a lower fare, look to book 45 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Rapid City?

Currently, January is the cheapest month in which you can book a flight from Seattle to Rapid City (average of $349). Flying from Seattle to Rapid City in December is currently the most expensive (average of $632). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Seattle to Rapid City?

Reviews of airlines servicing Rapid City

Get insights into the airlines that provide service to Rapid City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Rapid City. Reviews last updated June 7, 2026.
Get a feel of what it's like to fly with Delta and United Airlines from Seattle to Rapid City by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,396 reviews

Boarding

8.1

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,396 reviews
Delta
7.9
Good
8,396 reviews

Boarding

8.1

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,777 reviews
Delta
7.9
Good
8,396 reviews

Boarding

8.1

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from Seattle to Rapid City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Rapid City?

    There are many flights that can get you from Seattle to Rapid City in 18h 49m. Fly via United Airlines to get the fastest option. The distance between Seattle and Rapid City is about 954 mi.

  • What are the cheapest airlines flying from Seattle to Rapid City round-trip?

    According to our current data, Delta ($190), and United Airlines ($312) offers the cheapest pricing from Seattle to Rapid City. Delta is priced at 60% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Seattle to Rapid City that include hotel bookings?

    Yes. In addition to deals on Seattle to Rapid City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Rapid City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Rapid City.

  • Can I find deals for business class flights from Seattle to Rapid City?

    Yes. Cheapflights offers flight deals from Seattle to Rapid City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Rapid City?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Rapid City (average of $349). Flying from Seattle to Rapid City in December is currently the most expensive (average of $632). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Rapid City?

Book flights to Rapid City if you plan to visit one of these locations
Keystone
Deadwood
Sturgis
Spearfish

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Seattle to Rapid City

Discover the top 2 airlines that operate flights from Seattle to Rapid City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$190Average$353FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$312Average$487FlexibilityNo cancel feeOn-time69%

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